Suggestion: For all buildings, not only walls, floors, etc. keep the most recently used material or item type at the top of the selection list.

[pineapplemachine]

Currently there's a plugin which makes it so that if I build a wall using obsidian, for example, obsidian will appear at the very top of the list the next time I build a wall. It'd be fantastic if the same functionality were supported for workshops, for furniture (to put items of the same material at the top of the list), and really everything that accepts a material or item selected from a list in that manner.